Jiří Krejčí
type: MusicGroup
genre: chamber music
description: Jiří Krejčí (born 22 March 1986) is a retired footballer from Czech Republic. Club career Early career Krejčí begun his youth career at Sparta Prague. Then he spent the next years playing for Chmel
popularity: 3
followers: 21
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album: Gassmann: Divertimenti - Mozart: Oboe Quartet
  type: MusicAlbum
  date published: 2012-04-30
album: Fiala, Krommer, Zach: Oboe Concertos
  type: MusicAlbum
  date published: 2013-12-20
album: Mácha, Pauer, Bodorová and Zámečník: Chamber Works for Strings
  type: MusicAlbum
  date published: 2016-02-12
track: 6 Metamorphoses After Ovid, Op. 49: No. 1, Pan
track: 6 Metamorphoses After Ovid, Op. 49: No. 2, Phaeton

6 Metamorphoses After Ovid, Op. 49: No. 1, Pan
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by artist: Benjamin Britten
by artist: Jiří Krejčí
in album: Britten: Oboe Works
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  date published: 2018-04-09
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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  date published: 2026-07-08T08:56:20Z
audio: 6 Metamorphoses After Ovid, Op. 49: No. 1, Pan
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6 Metamorphoses After Ovid, Op. 49: No. 2, Phaeton
type: MusicRecording
duration: PT1M15S
duration ms: 75085
explicit: false
by artist: Benjamin Britten
by artist: Jiří Krejčí
in album: Britten: Oboe Works
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  date published: 2018-04-09
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T16:33:26Z
audio: 6 Metamorphoses After Ovid, Op. 49: No. 2, Phaeton
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch